I set my 632 motor up with Manley 221448 valve springs at 2.105, as I had clearance problems with a little bigger cam. After getting it put together I noticed the engine was very hard to turn. I started checking things and even though the springs were supposed to be set up at @.060 to coil bind which was 1.142, the bind measured at 1.168. So then I started looking for a 2.100 spring that had a coil bind bind number of 1.130 or less. I have 2 questions: Is this an anomaly, and does the only spring I could find (PSI 1248's) have the same problem with bind numbers being less than accurate? I don't any room to go to 2.150 as I am using lash caps and they won't work with the +.050 or +.100 retainers. It's an aluminum block with and the cam lift is .917 intake, .892 Exhaust, less valve lash. Valve lash is .016-.024. Any help appreciated.